Chalk-sharpener



(No Model!) O. W. SGHAEFER.

CHALK SHARPENER, CHALK DUST COLLECTOR, AND WEIGHT. No. 443,008. PatentedDec. 16,'189U).

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UNITED I STATES PATENT OFFICE.

CHARLES XV. SCHAEFER, OF CLEVELAND, OHIO.

CHALK-SHARPENER, CHALK-DUST COLLECTOR, AND WEIGHT.

SPECIFICATION forming part of Letters Patent No. 443,008, dated December16, 1&90.

Application filed fieptembei- 15, 1890- Serial No. 365,040. (No model.)

To (all whom it may concern.-

Be it known that 1, CHARLES W. SCHAEFER, of Cleveland, in the county ofCuyahoga and State of Ohio, have invented certain new and usefulImprovements in a Chalk- Sharpener, Chalk-Dust Collector, and Veight;and I do hereby declarethe following to be at'ull, clear. and exactdescription of the invention, such as will enable others skilled in theart to which it pertains to make and use the same.

My invention relates to a combined chalksharpener, box, and weight as anarticle of manufacture, that is more especially adapted to be used inmerchant-tailoring establishments, furrieries, &c. In suchestablishments a vast deal of chalk is used in marking the cloth orgoods preparatory to cutting, and also in fitting the garments to thewearer.

' The chalk, by reason of its soft and highly disintegrable properties,requires frequent sharpening, and heretofore in such establishments thewant of a suitable chalk-sharpener caused great lllOOilVGl'llQllCG andit was difl'h cult to keep the work-table and work free from chalk-dust,causing much annoyance; also, in such establishments weights areemployed to hold the work in place on the worktable. I have thereforedevised the combined chalk-sharpener, chalk-dust collector, and weight,hereinafter described, and pointed out in the claim.

In the accompanying drawings, Figure 1 is a plan of my improved device.Fig. 2 is a side elevation of the same. Fig. 3 is a vertical section online 00 a", Figs. 1 and 9. Fig. 4. is a bottom plan of the cover of thebox or chalk-dust collector. Fig. 5 is a plan of the box with the coverremoved.

A represents a case or box, preferably circular in plan, as shown. Box Ahas two or more inwardly-projecting flanges (1. These flanges areapproximately of a circular-arc form, (see Fig. 5,) and are undercut, asshown more clearly at a in Fig. 3.

B represents the cover of the box. The

cover has depending flanges b, the latter bein g correspondingly shapedto snugly fit the undercut portion of flanges a of box A, as shown inFig.

In applying the cover to the box the former is placed on the latter withits depending flanges between the flanges of the box, and then the coveris given a turn in one direction or the other, thus locking the same tothe box.

The cover has a slot C, contracted at its ends for receiving with atight fit the ends (Z of a cutter D, the cutting-edge of the latterextending slightly above the upper surface of the cover, as shown inFig. 2.

In using the cutter the chalkdust or particles of chalk liberated insharpening the chalk are deposited in the box below, slot C in the coverbeing ample in size to afford free ingress to such particles orchalk-dust, and when it becomes advisable to empty the box this canreadily be done by separating the cover and box in giving either a turnin the one direction or the other.

The cover and box are usually made of metal, so that the device will besufficiently heavy to answer the purpose of a weight,and to this end thecover is also provided with a handle or knob B.

The device is simple in construction and comparatively inexpensive, andit is believed will supply a long-felt desidera-tum of merchant tailors,furriers, (be.

hat I claim is As an article of manufacture, a combined chalk sharpener,chalkdust collector, and Weight, the same comprising a case or box andcover, the latter having depending flanges adapted to take under flangeson the box and provided with a slot having a cutter extending centrallyover it in such a manner that the particles liberated bySharpeningthechalk will be deposited on each side of the cutter, substantially asset forth.

In testimony whereof I sign this specification, in the presence of twoWitnesses, this 28th day of August, 1890.

CHARLES W. SCl-IAEFER.

Witnesses:

CHAS. II. Donna, WARD IIoovnR.

